The first 3 patients in the study will receive the lowest of three different doses used in the study. If this dose is well tolerated, the next 5 patients will receive a higher dose. If the second dose is tolerated, the last 5 patients will be given the highest dose. If any serious problems are encountered at a dose, patients in the next group will receive either the same or lower dose before being advanced to the next level. Patients in the first group will continue taking prednisone at their regular dose. All other patients will have their prednisone tapered gradually, if their condition permits. Patients who have a disease flare may have their prednisone increased for up to 2 weeks, followed by a gradual taper. If the flare is severe or does not respond to the increased prednisone, the patient will be taken off the study and treated to control the disease.